US 8 knitting needles (5 mm)
US size 8 knitting needles are 5 mm in the Craft Yarn Council chart.
On old UK and Canadian needles and patterns the same size is number 6.
They are in the recommended needle range for 4 Medium yarn (Worsted, afghan, aran).
Needles around 5 mm
Needles around 5 mm| US | mm | Old UK | Yarn weights |
|---|
| 6 | 4 mm | 8 | 3 Light |
|---|
| 7 | 4.5 mm | 7 | 3 Light, 4 Medium |
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| 8 | 5 mm | 6 | 4 Medium |
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| 9 | 5.5 mm | 5 | 4 Medium, 5 Bulky |
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| 10 | 6 mm | 4 | 5 Bulky |
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Yarn weights for 5 mm needles
Yarn weights for 5 mm needles| Weight | Knit gauge | Needles |
|---|
| 4 Medium | 16–20 sts per 4 in (10 cm) | 4.5–5.5 mm (US 7–9) |
|---|
The same size in crochet hooks
A 5 mm crochet hook is H-8.
Sizes from the Craft Yarn Council’s Hooks & Needles standard; old UK / Canadian numbers are the wire-gauge sizes used before metric. Go by the millimeter size printed on the needle.
Other knitting needle sizes
Frequently asked questions
What size in mm is a US 8 knitting needle?
A US 8 needle is 5 mm.
What yarn goes with 5 mm knitting needles?
They are in the recommended needle range for 4 Medium yarn (Worsted, afghan, aran).
Why don’t UK and US needle numbers match?
Old UK numbers come from a wire gauge where bigger numbers are thinner; US numbers grow with the needle. Millimeters are the same everywhere.